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Skunk2 Alpha Series stock-size valve set for Honda/Acura D-series engines are one-piece forgings made from proprietary alloys, heat-treated and finished with hard chrome plating. These valves are fully machined with optimized head profiles for improved airflow and sealing, are lighter than stock, and are developed and tested in-house to provide reliable durability and performance for high-demand street or track applications.
Skunk2 Alpha Series Honda/Acura Stock Size D Series Valve Set (Standard Compression)
